Home / 643,038.18-964,360.20-444,633.54

Finding the Fourth Proportional to 643,038.18, 964,360.20 and 444,633.54

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Solution

The fourth proportional to 643,038.18, 964,360.20 and 444,633.54 is: 666,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,038.18 : 964,360.20 = 444,633.54 : x
  2. Step 2: Convert to fraction form
    643,038.18/964,360.20 = 444,633.54/x
  3. Step 3: Cross multiply
    643,038.18x = 964,360.20 × 444,633.54
  4. Step 4: Simplify right side
    643,038.18x = 428,786,889,561.11
  5. Step 5: Solve for x
    x = 428,786,889,561.11/643,038.18
  6. Step 6: Final answer
    x = 666,814.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.